Programmer or Cold Air Intake?
Thread Starter
JK Newbie
Joined: Feb 2010
Posts: 3
Likes: 0
From: Ladera Ranch, CA
Programmer or Cold Air Intake?
Hi Everyone,
New to the forum and to the Jeep world and loving it! Have a 2008 JK 4 door with a 4 1/2 lift, 35's" and just installed a Magnaflow catback but need more power! I realize these vehicles are not built for speed but my next step is either a programmer or cold air intake and looking to you experts for some advice on what has worked for you. So, if I can only get one...which would provide the best results? Any input would be appreciated. Looking forward to a run soon!
Dave
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New to the forum and to the Jeep world and loving it! Have a 2008 JK 4 door with a 4 1/2 lift, 35's" and just installed a Magnaflow catback but need more power! I realize these vehicles are not built for speed but my next step is either a programmer or cold air intake and looking to you experts for some advice on what has worked for you. So, if I can only get one...which would provide the best results? Any input would be appreciated. Looking forward to a run soon!
Dave
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JK Enthusiast
Joined: Jul 2009
Posts: 103
Likes: 0
From: Bremerton, WA
I am curious about the programmer too. Like people always say these vehicles are not sports cars or commuter cars, but I am looking power with the same or improved MPG on regular grade fuel. Anyone have any suggestions? Any data? I have searched and not gotten anything conclusive
JK Enthusiast
Joined: Mar 2009
Posts: 384
Likes: 0
From: New Orleans, LA
If you have 4.10 or 3.73 gears, then the programmer. If you can spend $1000 instead of $309, I'd regear first.
If you have 3.21 gears, the programmer won't do much and you really need to regear first.
If you have an automatic, regear to 5.38s if you have a Rubi or 5.13s if you don't.
If you have a 6 speed, regear to 5.13s if there is ever a chance you will upgrade to 37s or if you pull a trailer. Otherwise, regear to 4.88s.
If you have 3.21 gears, the programmer won't do much and you really need to regear first.
If you have an automatic, regear to 5.38s if you have a Rubi or 5.13s if you don't.
If you have a 6 speed, regear to 5.13s if there is ever a chance you will upgrade to 37s or if you pull a trailer. Otherwise, regear to 4.88s.
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Thread Starter
JK Newbie
Joined: Feb 2010
Posts: 3
Likes: 0
From: Ladera Ranch, CA
programmer vs. CAI
Thanks all for the input! Forgot to mention its an automatic and hasn't been re-geared but was told the programmer would help take care of that too, "wire to wire." Was i mislead? Thanks!
